| Presentation | 2009-05-29 Improvement in measurement accuracy of double-pulse Brillouin optical time-domain reflectometry with signal processing technology Kazushi OISHI, Satoshi MATSUURA, Shoji ADACHI, Yahei KOYAMADA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | To detect the peak frequency of the Brillouin spectrum accurately is very important to achieve a high accurate strain and temperature distribution measurement by using Brillouin scattered signal in optical fibers. The double-pulse BOTDR has been proposed for measuring distributed strain and/or temperature along optical fibers with a sub-meter spatial resolution, and characterized by the oscillatory spectrum obtained by the interference between backscattered signals of the front and rear pulses. We achieved strain measurement accuracy of ±5μ strain (temperature measurement accuracy of ±0.25℃) with spatial resolution of 20cm by extracting oscillatory component from the measured spectrum by using signal processing technology. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Fiber sensor / Brillouin scattering / Distributed strain measurement / Distributed temperature measurement / BOTDR |
| Paper # | OFT2009-16 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2009/5/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Optical Fiber Technology (OFT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement in measurement accuracy of double-pulse Brillouin optical time-domain reflectometry with signal processing technology |
| Sub Title (in English) | |
| Keyword(1) | Fiber sensor |
| Keyword(2) | Brillouin scattering |
| Keyword(3) | Distributed strain measurement |
| Keyword(4) | Distributed temperature measurement |
| Keyword(5) | BOTDR |
| 1st Author's Name | Kazushi OISHI |
| 1st Author's Affiliation | Communication & Measurement Business Headquarters, Yokogawa Electric Corporation() |
| 2nd Author's Name | Satoshi MATSUURA |
| 2nd Author's Affiliation | Faculty of Engineering, Ibaraki University |
| 3rd Author's Name | Shoji ADACHI |
| 3rd Author's Affiliation | Faculty of Engineering, Ibaraki University |
| 4th Author's Name | Yahei KOYAMADA |
| 4th Author's Affiliation | Faculty of Engineering, Ibaraki University |
| Date | 2009-05-29 |
| Paper # | OFT2009-16 |
| Volume (vol) | vol.109 |
| Number (no) | 59 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |